If you had to pick ONE photo to sum up every photo on the Internet, it would HAVE to feature a cat. It might be a celebrity accidentally tweeting a photo of their genitalia, with a cat in the background . . . but still, a cat's there.

There's an app where you share photos of your pets, called Klooff. And they looked at just HOW much the Internet prefers photos of cats over photos of dogs . . . and it's significant.

According to their numbers, CAT photos are shared 230% more than dog photos.

And puppy photos get shared 170% more than photos of adult dogs.

They also found small dogs are 61% more likely to be in photos wearing COSTUMES than larger dogs.